local variable 'output' referenced before assignment

This error occurs when a local variable is referenced before it has been assigned a value within a function or method. This error typically surfaces when utilizing try …

А ошибка local variable referenced before assignment означает, что переменная, которую вы вызываете не объявлена.

This error message is raised when a variable is referenced before it has been assigned a value within the local scope of a function, even though it is a global variable. Here’s an example to help illustrate the problem:

The UnboundLocalError: local variable 'x' referenced before assignment occurs when you reference a variable inside a function before declaring that variable. To resolve this error, you need to use a different …

Learn how to fix the error that occurs when you reference a local variable before assigning a value to it in a function. See examples, explanations and alternative solutions using global, nonlocal and return keywords.

The UnboundLocalError occurs when a local variable is referenced before it has been assigned a value within a function or method. This error typically surfaces when utilizing …